This lens is tack sharp even shooting wide open @ f2.8 really good color satuation and contrast,focus speed is good,and quiet

The colors, the sharpness, the contrast is unreal.

And the 24-70 seemed to have a little better contrast and colors.

I rated this 2 stars for excellent color and contrast, although this deserves 1 star.$1000 for this junk?

Color's were amazing, and contrast was beautiful, but all this business of hearing how "tack sharp" this lens is, at f/2.8, might have brainwashed me, but the images I had seen over the several months of looking confirmed how beautiful this lens is MEANT to be

The lens is fully weather-sealed and has smudge resistant fluorine coatings front and back elements, and the color, contrast and resistance to flare is second to none

This is a fantastic lens, don't get me wrong; incredible color, contrast and sharpness, however, it's very heavy, and is not easy for a woman to carry around - one should definitely have a tri-pod when using this lens.

Great focusing, very sharp, great contrast and color

Sharp at 2.8, color, contrast are all there.

f/3.5-5.6 Rebel XTi Kit lens Muddy, slow, pile of junkCanon EF 17-40mm f/4 L Fantastic colors, sharp zoomed 17 to 24mm, ultra smooth zoom action, light weightCanon EF 24-70mm f/2.8 L Fantastic colors and contrast, sharp zoomed 40 to 70mm, zoom a little stiff at first, heavy, repair prone

The lens is sharp wide-open, and also produces gorgeous colors with good contrast and saturation

Outstanding optics (sharpness, contrast

Great lens, solid AF, good contrast and resolution

Color's were amazing, and contrast was beautiful, but all this business of hearing how "tack sharp" this lens is, at f/2.8, might have brainwashed me, but the images I had seen over the several months of looking confirmed how beautiful this lens is MEANT to be

Beautiful colors and contrasts

f2.8 at all focal lenths, razor sharpness, great contrast, excellent fit/finish/quality

It's sharp, high-contrast, and low aberration at nearly all zoom levels and apertures

The 5DII kept wanting to focus on things in the background or could not find enough contrast in the foreground.

As with most L lenses, you also get better color and contrast compared to cheaper non-L lenses

With this lens the contrast is much better then I have with some of my other lenses when taking a photo where one are is shaded and another is in sunlight I can tell details of the shaded and sun lit parts with no adjustments

It shoots images that are very sharp and have excellent contrast and saturation.

Because it gives you twice image quality than any other mid-zoom, it has a wide aperture of 2.8 (twice than f4), it's very sharp, it generates very well contrast images and has the lowest distortion in 24mm than other lens.

has a (somewhat) better sharpness and contrast, visible only when enlarged though

I put it on my camera and drained the battery in a hour b/c i could not stop shooting random things around the house.

, I think the nod goes to the 24-70.Next, the extra reach (to 105mm on a full frame or 168mm equivalent on an APS-C like the 40D, 50D, Rebels).

It is built like a tank, and I have taken it to the base of Niagara Falls (as wet as that is) with no issue whatsoever

The other functions of lens work as they should and everything is tight, down to the lens hood

or it's jut not as sharp as it sould be, specially for the price!

This immediately made me wonder as to why the broken parts were not discovered the first time Canon serviced, and why did the focus ring become loose

When I received my 24-70 f/2.8 lens, I was ecstatic to find that the results from my new L Glass zoom were every bit as impressive as from my prime lens.

F2.8 is not as sharp as the Canon 70-200 F2.8L but it is still way better than anything from other brands

L Lens looks like it ate my EF-S 17-85mm.

I like the versatility of my EF-S 17-85, but not happy with the ave colors or medium contrast or low end distortions